drivers/gpu/drm/vmwgfx/vmwgfx_drv.h

   1 /**************************************************************************
   2  *
   3  * Copyright © 2009-2015 VMware, Inc., Palo Alto, CA., USA
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  21  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  22  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  23  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  24  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #ifndef _VMWGFX_DRV_H_
  29 #define _VMWGFX_DRV_H_
  30
  31 #include "vmwgfx_reg.h"
  32 #include <drm/drmP.h>
  33 #include <drm/vmwgfx_drm.h>
  34 #include <drm/drm_hashtab.h>
  35 #include <drm/drm_auth.h>
  36 #include <linux/suspend.h>
  37 #include <drm/ttm/ttm_bo_driver.h>
  38 #include <drm/ttm/ttm_object.h>
  39 #include <drm/ttm/ttm_lock.h>
  40 #include <drm/ttm/ttm_execbuf_util.h>
  41 #include <drm/ttm/ttm_module.h>
  42 #include "vmwgfx_fence.h"
  43 #include <linux/sync_file.h>
  44
  45 #define VMWGFX_DRIVER_NAME "vmwgfx"
  46 #define VMWGFX_DRIVER_DATE "20170612"
  47 #define VMWGFX_DRIVER_MAJOR 2
  48 #define VMWGFX_DRIVER_MINOR 14
  49 #define VMWGFX_DRIVER_PATCHLEVEL 0
  50 #define VMWGFX_FILE_PAGE_OFFSET 0x00100000
  51 #define VMWGFX_FIFO_STATIC_SIZE (1024*1024)
  52 #define VMWGFX_MAX_RELOCATIONS 2048
  53 #define VMWGFX_MAX_VALIDATIONS 2048
  54 #define VMWGFX_MAX_DISPLAYS 16
  55 #define VMWGFX_CMD_BOUNCE_INIT_SIZE 32768
  56 #define VMWGFX_ENABLE_SCREEN_TARGET_OTABLE 1
  57
  58 /*
  59  * Perhaps we should have sysfs entries for these.
  60  */
  61 #define VMWGFX_NUM_GB_CONTEXT 256
  62 #define VMWGFX_NUM_GB_SHADER 20000
  63 #define VMWGFX_NUM_GB_SURFACE 32768
  64 #define VMWGFX_NUM_GB_SCREEN_TARGET VMWGFX_MAX_DISPLAYS
  65 #define VMWGFX_NUM_DXCONTEXT 256
  66 #define VMWGFX_NUM_DXQUERY 512
  67 #define VMWGFX_NUM_MOB (VMWGFX_NUM_GB_CONTEXT +\
  68                         VMWGFX_NUM_GB_SHADER +\
  69                         VMWGFX_NUM_GB_SURFACE +\
  70                         VMWGFX_NUM_GB_SCREEN_TARGET)
  71
  72 #define VMW_PL_GMR (TTM_PL_PRIV + 0)
  73 #define VMW_PL_FLAG_GMR (TTM_PL_FLAG_PRIV << 0)
  74 #define VMW_PL_MOB (TTM_PL_PRIV + 1)
  75 #define VMW_PL_FLAG_MOB (TTM_PL_FLAG_PRIV << 1)
  76
  77 #define VMW_RES_CONTEXT ttm_driver_type0
  78 #define VMW_RES_SURFACE ttm_driver_type1
  79 #define VMW_RES_STREAM ttm_driver_type2
  80 #define VMW_RES_FENCE ttm_driver_type3
  81 #define VMW_RES_SHADER ttm_driver_type4
  82
  83 struct vmw_fpriv {
  84         struct drm_master *locked_master;
  85         struct ttm_object_file *tfile;
  86         bool gb_aware;
  87 };
  88
  89 struct vmw_dma_buffer {
  90         struct ttm_buffer_object base;
  91         struct list_head res_list;
  92         s32 pin_count;
  93         /* Not ref-counted.  Protected by binding_mutex */
  94         struct vmw_resource *dx_query_ctx;
  95 };
  96
  97 /**
  98  * struct vmw_validate_buffer - Carries validation info about buffers.
  99  *
 100  * @base: Validation info for TTM.
 101  * @hash: Hash entry for quick lookup of the TTM buffer object.
 102  *
 103  * This structure contains also driver private validation info
 104  * on top of the info needed by TTM.
 105  */
 106 struct vmw_validate_buffer {
 107         struct ttm_validate_buffer base;
 108         struct drm_hash_item hash;
 109         bool validate_as_mob;
 110 };
 111
 112 struct vmw_res_func;
 113 struct vmw_resource {
 114         struct kref kref;
 115         struct vmw_private *dev_priv;
 116         int id;
 117         bool avail;
 118         unsigned long backup_size;
 119         bool res_dirty; /* Protected by backup buffer reserved */
 120         bool backup_dirty; /* Protected by backup buffer reserved */
 121         struct vmw_dma_buffer *backup;
 122         unsigned long backup_offset;
 123         unsigned long pin_count; /* Protected by resource reserved */
 124         const struct vmw_res_func *func;
 125         struct list_head lru_head; /* Protected by the resource lock */
 126         struct list_head mob_head; /* Protected by @backup reserved */
 127         struct list_head binding_head; /* Protected by binding_mutex */
 128         void (*res_free) (struct vmw_resource *res);
 129         void (*hw_destroy) (struct vmw_resource *res);
 130 };
 131
 132
 133 /*
 134  * Resources that are managed using ioctls.
 135  */
 136 enum vmw_res_type {
 137         vmw_res_context,
 138         vmw_res_surface,
 139         vmw_res_stream,
 140         vmw_res_shader,
 141         vmw_res_dx_context,
 142         vmw_res_cotable,
 143         vmw_res_view,
 144         vmw_res_max
 145 };
 146
 147 /*
 148  * Resources that are managed using command streams.
 149  */
 150 enum vmw_cmdbuf_res_type {
 151         vmw_cmdbuf_res_shader,
 152         vmw_cmdbuf_res_view
 153 };
 154
 155 struct vmw_cmdbuf_res_manager;
 156
 157 struct vmw_cursor_snooper {
 158         size_t age;
 159         uint32_t *image;
 160 };
 161
 162 struct vmw_framebuffer;
 163 struct vmw_surface_offset;
 164
 165 struct vmw_surface {
 166         struct vmw_resource res;
 167         uint32_t flags;
 168         uint32_t format;
 169         uint32_t mip_levels[DRM_VMW_MAX_SURFACE_FACES];
 170         struct drm_vmw_size base_size;
 171         struct drm_vmw_size *sizes;
 172         uint32_t num_sizes;
 173         bool scanout;
 174         uint32_t array_size;
 175         /* TODO so far just a extra pointer */
 176         struct vmw_cursor_snooper snooper;
 177         struct vmw_surface_offset *offsets;
 178         SVGA3dTextureFilter autogen_filter;
 179         uint32_t multisample_count;
 180         struct list_head view_list;
 181 };
 182
 183 struct vmw_marker_queue {
 184         struct list_head head;
 185         u64 lag;
 186         u64 lag_time;
 187         spinlock_t lock;
 188 };
 189
 190 struct vmw_fifo_state {
 191         unsigned long reserved_size;
 192         u32 *dynamic_buffer;
 193         u32 *static_buffer;
 194         unsigned long static_buffer_size;
 195         bool using_bounce_buffer;
 196         uint32_t capabilities;
 197         struct mutex fifo_mutex;
 198         struct rw_semaphore rwsem;
 199         struct vmw_marker_queue marker_queue;
 200         bool dx;
 201 };
 202
 203 struct vmw_relocation {
 204         SVGAMobId *mob_loc;
 205         SVGAGuestPtr *location;
 206         uint32_t index;
 207 };
 208
 209 /**
 210  * struct vmw_res_cache_entry - resource information cache entry
 211  *
 212  * @valid: Whether the entry is valid, which also implies that the execbuf
 213  * code holds a reference to the resource, and it's placed on the
 214  * validation list.
 215  * @handle: User-space handle of a resource.
 216  * @res: Non-ref-counted pointer to the resource.
 217  *
 218  * Used to avoid frequent repeated user-space handle lookups of the
 219  * same resource.
 220  */
 221 struct vmw_res_cache_entry {
 222         bool valid;
 223         uint32_t handle;
 224         struct vmw_resource *res;
 225         struct vmw_resource_val_node *node;
 226 };
 227
 228 /**
 229  * enum vmw_dma_map_mode - indicate how to perform TTM page dma mappings.
 230  */
 231 enum vmw_dma_map_mode {
 232         vmw_dma_phys,           /* Use physical page addresses */
 233         vmw_dma_alloc_coherent, /* Use TTM coherent pages */
 234         vmw_dma_map_populate,   /* Unmap from DMA just after unpopulate */
 235         vmw_dma_map_bind,       /* Unmap from DMA just before unbind */
 236         vmw_dma_map_max
 237 };
 238
 239 /**
 240  * struct vmw_sg_table - Scatter/gather table for binding, with additional
 241  * device-specific information.
 242  *
 243  * @sgt: Pointer to a struct sg_table with binding information
 244  * @num_regions: Number of regions with device-address contiguous pages
 245  */
 246 struct vmw_sg_table {
 247         enum vmw_dma_map_mode mode;
 248         struct page **pages;
 249         const dma_addr_t *addrs;
 250         struct sg_table *sgt;
 251         unsigned long num_regions;
 252         unsigned long num_pages;
 253 };
 254
 255 /**
 256  * struct vmw_piter - Page iterator that iterates over a list of pages
 257  * and DMA addresses that could be either a scatter-gather list or
 258  * arrays
 259  *
 260  * @pages: Array of page pointers to the pages.
 261  * @addrs: DMA addresses to the pages if coherent pages are used.
 262  * @iter: Scatter-gather page iterator. Current position in SG list.
 263  * @i: Current position in arrays.
 264  * @num_pages: Number of pages total.
 265  * @next: Function to advance the iterator. Returns false if past the list
 266  * of pages, true otherwise.
 267  * @dma_address: Function to return the DMA address of the current page.
 268  */
 269 struct vmw_piter {
 270         struct page **pages;
 271         const dma_addr_t *addrs;
 272         struct sg_page_iter iter;
 273         unsigned long i;
 274         unsigned long num_pages;
 275         bool (*next)(struct vmw_piter *);
 276         dma_addr_t (*dma_address)(struct vmw_piter *);
 277         struct page *(*page)(struct vmw_piter *);
 278 };
 279
 280 /*
 281  * enum vmw_display_unit_type - Describes the display unit
 282  */
 283 enum vmw_display_unit_type {
 284         vmw_du_invalid = 0,
 285         vmw_du_legacy,
 286         vmw_du_screen_object,
 287         vmw_du_screen_target
 288 };
 289
 290
 291 struct vmw_sw_context{
 292         struct drm_open_hash res_ht;
 293         bool res_ht_initialized;
 294         bool kernel; /**< is the called made from the kernel */
 295         struct vmw_fpriv *fp;
 296         struct list_head validate_nodes;
 297         struct vmw_relocation relocs[VMWGFX_MAX_RELOCATIONS];
 298         uint32_t cur_reloc;
 299         struct vmw_validate_buffer val_bufs[VMWGFX_MAX_VALIDATIONS];
 300         uint32_t cur_val_buf;
 301         uint32_t *cmd_bounce;
 302         uint32_t cmd_bounce_size;
 303         struct list_head resource_list;
 304         struct list_head ctx_resource_list; /* For contexts and cotables */
 305         struct vmw_dma_buffer *cur_query_bo;
 306         struct list_head res_relocations;
 307         uint32_t *buf_start;
 308         struct vmw_res_cache_entry res_cache[vmw_res_max];
 309         struct vmw_resource *last_query_ctx;
 310         bool needs_post_query_barrier;
 311         struct vmw_resource *error_resource;
 312         struct vmw_ctx_binding_state *staged_bindings;
 313         bool staged_bindings_inuse;
 314         struct list_head staged_cmd_res;
 315         struct vmw_resource_val_node *dx_ctx_node;
 316         struct vmw_dma_buffer *dx_query_mob;
 317         struct vmw_resource *dx_query_ctx;
 318         struct vmw_cmdbuf_res_manager *man;
 319 };
 320
 321 struct vmw_legacy_display;
 322 struct vmw_overlay;
 323
 324 struct vmw_master {
 325         struct ttm_lock lock;
 326 };
 327
 328 struct vmw_vga_topology_state {
 329         uint32_t width;
 330         uint32_t height;
 331         uint32_t primary;
 332         uint32_t pos_x;
 333         uint32_t pos_y;
 334 };
 335
 336
 337 /*
 338  * struct vmw_otable - Guest Memory OBject table metadata
 339  *
 340  * @size:           Size of the table (page-aligned).
 341  * @page_table:     Pointer to a struct vmw_mob holding the page table.
 342  */
 343 struct vmw_otable {
 344         unsigned long size;
 345         struct vmw_mob *page_table;
 346         bool enabled;
 347 };
 348
 349 struct vmw_otable_batch {
 350         unsigned num_otables;
 351         struct vmw_otable *otables;
 352         struct vmw_resource *context;
 353         struct ttm_buffer_object *otable_bo;
 354 };
 355
 356 enum {
 357         VMW_IRQTHREAD_FENCE,
 358         VMW_IRQTHREAD_CMDBUF,
 359         VMW_IRQTHREAD_MAX
 360 };
 361
 362 struct vmw_private {
 363         struct ttm_bo_device bdev;
 364         struct ttm_bo_global_ref bo_global_ref;
 365         struct drm_global_reference mem_global_ref;
 366
 367         struct vmw_fifo_state fifo;
 368
 369         struct drm_device *dev;
 370         unsigned long vmw_chipset;
 371         unsigned int io_start;
 372         uint32_t vram_start;
 373         uint32_t vram_size;
 374         uint32_t prim_bb_mem;
 375         uint32_t mmio_start;
 376         uint32_t mmio_size;
 377         uint32_t fb_max_width;
 378         uint32_t fb_max_height;
 379         uint32_t texture_max_width;
 380         uint32_t texture_max_height;
 381         uint32_t stdu_max_width;
 382         uint32_t stdu_max_height;
 383         uint32_t initial_width;
 384         uint32_t initial_height;
 385         u32 *mmio_virt;
 386         uint32_t capabilities;
 387         uint32_t max_gmr_ids;
 388         uint32_t max_gmr_pages;
 389         uint32_t max_mob_pages;
 390         uint32_t max_mob_size;
 391         uint32_t memory_size;
 392         bool has_gmr;
 393         bool has_mob;
 394         spinlock_t hw_lock;
 395         spinlock_t cap_lock;
 396         bool has_dx;
 397         bool assume_16bpp;
 398
 399         /*
 400          * VGA registers.
 401          */
 402
 403         struct vmw_vga_topology_state vga_save[VMWGFX_MAX_DISPLAYS];
 404         uint32_t vga_width;
 405         uint32_t vga_height;
 406         uint32_t vga_bpp;
 407         uint32_t vga_bpl;
 408         uint32_t vga_pitchlock;
 409
 410         uint32_t num_displays;
 411
 412         /*
 413          * Framebuffer info.
 414          */
 415
 416         void *fb_info;
 417         enum vmw_display_unit_type active_display_unit;
 418         struct vmw_legacy_display *ldu_priv;
 419         struct vmw_overlay *overlay_priv;
 420         struct drm_property *hotplug_mode_update_property;
 421         struct drm_property *implicit_placement_property;
 422         unsigned num_implicit;
 423         struct vmw_framebuffer *implicit_fb;
 424         struct mutex global_kms_state_mutex;
 425         spinlock_t cursor_lock;
 426
 427         /*
 428          * Context and surface management.
 429          */
 430
 431         rwlock_t resource_lock;
 432         struct idr res_idr[vmw_res_max];
 433         /*
 434          * Block lastclose from racing with firstopen.
 435          */
 436
 437         struct mutex init_mutex;
 438
 439         /*
 440          * A resource manager for kernel-only surfaces and
 441          * contexts.
 442          */
 443
 444         struct ttm_object_device *tdev;
 445
 446         /*
 447          * Fencing and IRQs.
 448          */
 449
 450         atomic_t marker_seq;
 451         wait_queue_head_t fence_queue;
 452         wait_queue_head_t fifo_queue;
 453         spinlock_t waiter_lock;
 454         int fence_queue_waiters; /* Protected by waiter_lock */
 455         int goal_queue_waiters; /* Protected by waiter_lock */
 456         int cmdbuf_waiters; /* Protected by waiter_lock */
 457         int error_waiters; /* Protected by waiter_lock */
 458         int fifo_queue_waiters; /* Protected by waiter_lock */
 459         uint32_t last_read_seqno;
 460         struct vmw_fence_manager *fman;
 461         uint32_t irq_mask; /* Updates protected by waiter_lock */
 462
 463         /*
 464          * Device state
 465          */
 466
 467         uint32_t traces_state;
 468         uint32_t enable_state;
 469         uint32_t config_done_state;
 470
 471         /**
 472          * Execbuf
 473          */
 474         /**
 475          * Protected by the cmdbuf mutex.
 476          */
 477
 478         struct vmw_sw_context ctx;
 479         struct mutex cmdbuf_mutex;
 480         struct mutex binding_mutex;
 481
 482         /**
 483          * Operating mode.
 484          */
 485
 486         bool stealth;
 487         bool enable_fb;
 488         spinlock_t svga_lock;
 489
 490         /**
 491          * Master management.
 492          */
 493
 494         struct vmw_master *active_master;
 495         struct vmw_master fbdev_master;
 496         struct notifier_block pm_nb;
 497         bool suspended;
 498         bool refuse_hibernation;
 499
 500         struct mutex release_mutex;
 501         atomic_t num_fifo_resources;
 502
 503         /*
 504          * Replace this with an rwsem as soon as we have down_xx_interruptible()
 505          */
 506         struct ttm_lock reservation_sem;
 507
 508         /*
 509          * Query processing. These members
 510          * are protected by the cmdbuf mutex.
 511          */
 512
 513         struct vmw_dma_buffer *dummy_query_bo;
 514         struct vmw_dma_buffer *pinned_bo;
 515         uint32_t query_cid;
 516         uint32_t query_cid_valid;
 517         bool dummy_query_bo_pinned;
 518
 519         /*
 520          * Surface swapping. The "surface_lru" list is protected by the
 521          * resource lock in order to be able to destroy a surface and take
 522          * it off the lru atomically. "used_memory_size" is currently
 523          * protected by the cmdbuf mutex for simplicity.
 524          */
 525
 526         struct list_head res_lru[vmw_res_max];
 527         uint32_t used_memory_size;
 528
 529         /*
 530          * DMA mapping stuff.
 531          */
 532         enum vmw_dma_map_mode map_mode;
 533
 534         /*
 535          * Guest Backed stuff
 536          */
 537         struct vmw_otable_batch otable_batch;
 538
 539         struct vmw_cmdbuf_man *cman;
 540         DECLARE_BITMAP(irqthread_pending, VMW_IRQTHREAD_MAX);
 541 };
 542
 543 static inline struct vmw_surface *vmw_res_to_srf(struct vmw_resource *res)
 544 {
 545         return container_of(res, struct vmw_surface, res);
 546 }
 547
 548 static inline struct vmw_private *vmw_priv(struct drm_device *dev)
 549 {
 550         return (struct vmw_private *)dev->dev_private;
 551 }
 552
 553 static inline struct vmw_fpriv *vmw_fpriv(struct drm_file *file_priv)
 554 {
 555         return (struct vmw_fpriv *)file_priv->driver_priv;
 556 }
 557
 558 static inline struct vmw_master *vmw_master(struct drm_master *master)
 559 {
 560         return (struct vmw_master *) master->driver_priv;
 561 }
 562
 563 /*
 564  * The locking here is fine-grained, so that it is performed once
 565  * for every read- and write operation. This is of course costly, but we
 566  * don't perform much register access in the timing critical paths anyway.
 567  * Instead we have the extra benefit of being sure that we don't forget
 568  * the hw lock around register accesses.
 569  */
 570 static inline void vmw_write(struct vmw_private *dev_priv,
 571                              unsigned int offset, uint32_t value)
 572 {
 573         spin_lock(&dev_priv->hw_lock);
 574         outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT);
 575         outl(value, dev_priv->io_start + VMWGFX_VALUE_PORT);
 576         spin_unlock(&dev_priv->hw_lock);
 577 }
 578
 579 static inline uint32_t vmw_read(struct vmw_private *dev_priv,
 580                                 unsigned int offset)
 581 {
 582         u32 val;
 583
 584         spin_lock(&dev_priv->hw_lock);
 585         outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT);
 586         val = inl(dev_priv->io_start + VMWGFX_VALUE_PORT);
 587         spin_unlock(&dev_priv->hw_lock);
 588
 589         return val;
 590 }
 591
 592 extern void vmw_svga_enable(struct vmw_private *dev_priv);
 593 extern void vmw_svga_disable(struct vmw_private *dev_priv);
 594
 595
 596 /**
 597  * GMR utilities - vmwgfx_gmr.c
 598  */
 599
 600 extern int vmw_gmr_bind(struct vmw_private *dev_priv,
 601                         const struct vmw_sg_table *vsgt,
 602                         unsigned long num_pages,
 603                         int gmr_id);
 604 extern void vmw_gmr_unbind(struct vmw_private *dev_priv, int gmr_id);
 605
 606 /**
 607  * Resource utilities - vmwgfx_resource.c
 608  */
 609 struct vmw_user_resource_conv;
 610
 611 extern void vmw_resource_unreference(struct vmw_resource **p_res);
 612 extern struct vmw_resource *vmw_resource_reference(struct vmw_resource *res);
 613 extern struct vmw_resource *
 614 vmw_resource_reference_unless_doomed(struct vmw_resource *res);
 615 extern int vmw_resource_validate(struct vmw_resource *res);
 616 extern int vmw_resource_reserve(struct vmw_resource *res, bool interruptible,
 617                                 bool no_backup);
 618 extern bool vmw_resource_needs_backup(const struct vmw_resource *res);
 619 extern int vmw_user_lookup_handle(struct vmw_private *dev_priv,
 620                                   struct ttm_object_file *tfile,
 621                                   uint32_t handle,
 622                                   struct vmw_surface **out_surf,
 623                                   struct vmw_dma_buffer **out_buf);
 624 extern int vmw_user_resource_lookup_handle(
 625         struct vmw_private *dev_priv,
 626         struct ttm_object_file *tfile,
 627         uint32_t handle,
 628         const struct vmw_user_resource_conv *converter,
 629         struct vmw_resource **p_res);
 630 extern void vmw_dmabuf_bo_free(struct ttm_buffer_object *bo);
 631 extern int vmw_dmabuf_init(struct vmw_private *dev_priv,
 632                            struct vmw_dma_buffer *vmw_bo,
 633                            size_t size, struct ttm_placement *placement,
 634                            bool interuptable,
 635                            void (*bo_free) (struct ttm_buffer_object *bo));
 636 extern int vmw_user_dmabuf_verify_access(struct ttm_buffer_object *bo,
 637                                   struct ttm_object_file *tfile);
 638 extern int vmw_user_dmabuf_alloc(struct vmw_private *dev_priv,
 639                                  struct ttm_object_file *tfile,
 640                                  uint32_t size,
 641                                  bool shareable,
 642                                  uint32_t *handle,
 643                                  struct vmw_dma_buffer **p_dma_buf,
 644                                  struct ttm_base_object **p_base);
 645 extern int vmw_user_dmabuf_reference(struct ttm_object_file *tfile,
 646                                      struct vmw_dma_buffer *dma_buf,
 647                                      uint32_t *handle);
 648 extern int vmw_dmabuf_alloc_ioctl(struct drm_device *dev, void *data,
 649                                   struct drm_file *file_priv);
 650 extern int vmw_dmabuf_unref_ioctl(struct drm_device *dev, void *data,
 651                                   struct drm_file *file_priv);
 652 extern int vmw_user_dmabuf_synccpu_ioctl(struct drm_device *dev, void *data,
 653                                          struct drm_file *file_priv);
 654 extern uint32_t vmw_dmabuf_validate_node(struct ttm_buffer_object *bo,
 655                                          uint32_t cur_validate_node);
 656 extern void vmw_dmabuf_validate_clear(struct ttm_buffer_object *bo);
 657 extern int vmw_user_dmabuf_lookup(struct ttm_object_file *tfile,
 658                                   uint32_t id, struct vmw_dma_buffer **out,
 659                                   struct ttm_base_object **base);
 660 extern int vmw_stream_claim_ioctl(struct drm_device *dev, void *data,
 661                                   struct drm_file *file_priv);
 662 extern int vmw_stream_unref_ioctl(struct drm_device *dev, void *data,
 663                                   struct drm_file *file_priv);
 664 extern int vmw_user_stream_lookup(struct vmw_private *dev_priv,
 665                                   struct ttm_object_file *tfile,
 666                                   uint32_t *inout_id,
 667                                   struct vmw_resource **out);
 668 extern void vmw_resource_unreserve(struct vmw_resource *res,
 669                                    bool switch_backup,
 670                                    struct vmw_dma_buffer *new_backup,
 671                                    unsigned long new_backup_offset);
 672 extern void vmw_resource_move_notify(struct ttm_buffer_object *bo,
 673                                      struct ttm_mem_reg *mem);
 674 extern void vmw_query_move_notify(struct ttm_buffer_object *bo,
 675                                   struct ttm_mem_reg *mem);
 676 extern int vmw_query_readback_all(struct vmw_dma_buffer *dx_query_mob);
 677 extern void vmw_fence_single_bo(struct ttm_buffer_object *bo,
 678                                 struct vmw_fence_obj *fence);
 679 extern void vmw_resource_evict_all(struct vmw_private *dev_priv);
 680
 681 /**
 682  * DMA buffer helper routines - vmwgfx_dmabuf.c
 683  */
 684 extern int vmw_dmabuf_pin_in_placement(struct vmw_private *vmw_priv,
 685                                        struct vmw_dma_buffer *bo,
 686                                        struct ttm_placement *placement,
 687                                        bool interruptible);
 688 extern int vmw_dmabuf_pin_in_vram(struct vmw_private *dev_priv,
 689                                   struct vmw_dma_buffer *buf,
 690                                   bool interruptible);
 691 extern int vmw_dmabuf_pin_in_vram_or_gmr(struct vmw_private *dev_priv,
 692                                          struct vmw_dma_buffer *buf,
 693                                          bool interruptible);
 694 extern int vmw_dmabuf_pin_in_start_of_vram(struct vmw_private *vmw_priv,
 695                                            struct vmw_dma_buffer *bo,
 696                                            bool interruptible);
 697 extern int vmw_dmabuf_unpin(struct vmw_private *vmw_priv,
 698                             struct vmw_dma_buffer *bo,
 699                             bool interruptible);
 700 extern void vmw_bo_get_guest_ptr(const struct ttm_buffer_object *buf,
 701                                  SVGAGuestPtr *ptr);
 702 extern void vmw_bo_pin_reserved(struct vmw_dma_buffer *bo, bool pin);
 703
 704 /**
 705  * Misc Ioctl functionality - vmwgfx_ioctl.c
 706  */
 707
 708 extern int vmw_getparam_ioctl(struct drm_device *dev, void *data,
 709                               struct drm_file *file_priv);
 710 extern int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
 711                                 struct drm_file *file_priv);
 712 extern int vmw_present_ioctl(struct drm_device *dev, void *data,
 713                              struct drm_file *file_priv);
 714 extern int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
 715                                       struct drm_file *file_priv);
 716 extern unsigned int vmw_fops_poll(struct file *filp,
 717                                   struct poll_table_struct *wait);
 718 extern ssize_t vmw_fops_read(struct file *filp, char __user *buffer,
 719                              size_t count, loff_t *offset);
 720
 721 /**
 722  * Fifo utilities - vmwgfx_fifo.c
 723  */
 724
 725 extern int vmw_fifo_init(struct vmw_private *dev_priv,
 726                          struct vmw_fifo_state *fifo);
 727 extern void vmw_fifo_release(struct vmw_private *dev_priv,
 728                              struct vmw_fifo_state *fifo);
 729 extern void *vmw_fifo_reserve(struct vmw_private *dev_priv, uint32_t bytes);
 730 extern void *
 731 vmw_fifo_reserve_dx(struct vmw_private *dev_priv, uint32_t bytes, int ctx_id);
 732 extern void vmw_fifo_commit(struct vmw_private *dev_priv, uint32_t bytes);
 733 extern void vmw_fifo_commit_flush(struct vmw_private *dev_priv, uint32_t bytes);
 734 extern int vmw_fifo_send_fence(struct vmw_private *dev_priv,
 735                                uint32_t *seqno);
 736 extern void vmw_fifo_ping_host_locked(struct vmw_private *, uint32_t reason);
 737 extern void vmw_fifo_ping_host(struct vmw_private *dev_priv, uint32_t reason);
 738 extern bool vmw_fifo_have_3d(struct vmw_private *dev_priv);
 739 extern bool vmw_fifo_have_pitchlock(struct vmw_private *dev_priv);
 740 extern int vmw_fifo_emit_dummy_query(struct vmw_private *dev_priv,
 741                                      uint32_t cid);
 742 extern int vmw_fifo_flush(struct vmw_private *dev_priv,
 743                           bool interruptible);
 744
 745 /**
 746  * TTM glue - vmwgfx_ttm_glue.c
 747  */
 748
 749 extern int vmw_ttm_global_init(struct vmw_private *dev_priv);
 750 extern void vmw_ttm_global_release(struct vmw_private *dev_priv);
 751 extern int vmw_mmap(struct file *filp, struct vm_area_struct *vma);
 752
 753 /**
 754  * TTM buffer object driver - vmwgfx_buffer.c
 755  */
 756
 757 extern const size_t vmw_tt_size;
 758 extern struct ttm_placement vmw_vram_placement;
 759 extern struct ttm_placement vmw_vram_ne_placement;
 760 extern struct ttm_placement vmw_vram_sys_placement;
 761 extern struct ttm_placement vmw_vram_gmr_placement;
 762 extern struct ttm_placement vmw_vram_gmr_ne_placement;
 763 extern struct ttm_placement vmw_sys_placement;
 764 extern struct ttm_placement vmw_sys_ne_placement;
 765 extern struct ttm_placement vmw_evictable_placement;
 766 extern struct ttm_placement vmw_srf_placement;
 767 extern struct ttm_placement vmw_mob_placement;
 768 extern struct ttm_placement vmw_mob_ne_placement;
 769 extern struct ttm_bo_driver vmw_bo_driver;
 770 extern int vmw_dma_quiescent(struct drm_device *dev);
 771 extern int vmw_bo_map_dma(struct ttm_buffer_object *bo);
 772 extern void vmw_bo_unmap_dma(struct ttm_buffer_object *bo);
 773 extern const struct vmw_sg_table *
 774 vmw_bo_sg_table(struct ttm_buffer_object *bo);
 775 extern void vmw_piter_start(struct vmw_piter *viter,
 776                             const struct vmw_sg_table *vsgt,
 777                             unsigned long p_offs);
 778
 779 /**
 780  * vmw_piter_next - Advance the iterator one page.
 781  *
 782  * @viter: Pointer to the iterator to advance.
 783  *
 784  * Returns false if past the list of pages, true otherwise.
 785  */
 786 static inline bool vmw_piter_next(struct vmw_piter *viter)
 787 {
 788         return viter->next(viter);
 789 }
 790
 791 /**
 792  * vmw_piter_dma_addr - Return the DMA address of the current page.
 793  *
 794  * @viter: Pointer to the iterator
 795  *
 796  * Returns the DMA address of the page pointed to by @viter.
 797  */
 798 static inline dma_addr_t vmw_piter_dma_addr(struct vmw_piter *viter)
 799 {
 800         return viter->dma_address(viter);
 801 }
 802
 803 /**
 804  * vmw_piter_page - Return a pointer to the current page.
 805  *
 806  * @viter: Pointer to the iterator
 807  *
 808  * Returns the DMA address of the page pointed to by @viter.
 809  */
 810 static inline struct page *vmw_piter_page(struct vmw_piter *viter)
 811 {
 812         return viter->page(viter);
 813 }
 814
 815 /**
 816  * Command submission - vmwgfx_execbuf.c
 817  */
 818
 819 extern int vmw_execbuf_ioctl(struct drm_device *dev, unsigned long data,
 820                              struct drm_file *file_priv, size_t size);
 821 extern int vmw_execbuf_process(struct drm_file *file_priv,
 822                                struct vmw_private *dev_priv,
 823                                void __user *user_commands,
 824                                void *kernel_commands,
 825                                uint32_t command_size,
 826                                uint64_t throttle_us,
 827                                uint32_t dx_context_handle,
 828                                struct drm_vmw_fence_rep __user
 829                                *user_fence_rep,
 830                                struct vmw_fence_obj **out_fence,
 831                                uint32_t flags);
 832 extern void __vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv,
 833                                             struct vmw_fence_obj *fence);
 834 extern void vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv);
 835
 836 extern int vmw_execbuf_fence_commands(struct drm_file *file_priv,
 837                                       struct vmw_private *dev_priv,
 838                                       struct vmw_fence_obj **p_fence,
 839                                       uint32_t *p_handle);
 840 extern int vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv,
 841                                         struct vmw_fpriv *vmw_fp,
 842                                         int ret,
 843                                         struct drm_vmw_fence_rep __user
 844                                         *user_fence_rep,
 845                                         struct vmw_fence_obj *fence,
 846                                         uint32_t fence_handle,
 847                                         int32_t out_fence_fd);
 848 extern int vmw_validate_single_buffer(struct vmw_private *dev_priv,
 849                                       struct ttm_buffer_object *bo,
 850                                       bool interruptible,
 851                                       bool validate_as_mob);
 852 bool vmw_cmd_describe(const void *buf, u32 *size, char const **cmd);
 853
 854 /**
 855  * IRQs and wating - vmwgfx_irq.c
 856  */
 857
 858 extern int vmw_wait_seqno(struct vmw_private *dev_priv, bool lazy,
 859                           uint32_t seqno, bool interruptible,
 860                           unsigned long timeout);
 861 extern int vmw_irq_install(struct drm_device *dev, int irq);
 862 extern void vmw_irq_uninstall(struct drm_device *dev);
 863 extern bool vmw_seqno_passed(struct vmw_private *dev_priv,
 864                                 uint32_t seqno);
 865 extern int vmw_fallback_wait(struct vmw_private *dev_priv,
 866                              bool lazy,
 867                              bool fifo_idle,
 868                              uint32_t seqno,
 869                              bool interruptible,
 870                              unsigned long timeout);
 871 extern void vmw_update_seqno(struct vmw_private *dev_priv,
 872                                 struct vmw_fifo_state *fifo_state);
 873 extern void vmw_seqno_waiter_add(struct vmw_private *dev_priv);
 874 extern void vmw_seqno_waiter_remove(struct vmw_private *dev_priv);
 875 extern void vmw_goal_waiter_add(struct vmw_private *dev_priv);
 876 extern void vmw_goal_waiter_remove(struct vmw_private *dev_priv);
 877 extern void vmw_generic_waiter_add(struct vmw_private *dev_priv, u32 flag,
 878                                    int *waiter_count);
 879 extern void vmw_generic_waiter_remove(struct vmw_private *dev_priv,
 880                                       u32 flag, int *waiter_count);
 881
 882 /**
 883  * Rudimentary fence-like objects currently used only for throttling -
 884  * vmwgfx_marker.c
 885  */
 886
 887 extern void vmw_marker_queue_init(struct vmw_marker_queue *queue);
 888 extern void vmw_marker_queue_takedown(struct vmw_marker_queue *queue);
 889 extern int vmw_marker_push(struct vmw_marker_queue *queue,
 890                            uint32_t seqno);
 891 extern int vmw_marker_pull(struct vmw_marker_queue *queue,
 892                            uint32_t signaled_seqno);
 893 extern int vmw_wait_lag(struct vmw_private *dev_priv,
 894                         struct vmw_marker_queue *queue, uint32_t us);
 895
 896 /**
 897  * Kernel framebuffer - vmwgfx_fb.c
 898  */
 899
 900 int vmw_fb_init(struct vmw_private *vmw_priv);
 901 int vmw_fb_close(struct vmw_private *dev_priv);
 902 int vmw_fb_off(struct vmw_private *vmw_priv);
 903 int vmw_fb_on(struct vmw_private *vmw_priv);
 904
 905 /**
 906  * Kernel modesetting - vmwgfx_kms.c
 907  */
 908
 909 int vmw_kms_init(struct vmw_private *dev_priv);
 910 int vmw_kms_close(struct vmw_private *dev_priv);
 911 int vmw_kms_save_vga(struct vmw_private *vmw_priv);
 912 int vmw_kms_restore_vga(struct vmw_private *vmw_priv);
 913 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
 914                                 struct drm_file *file_priv);
 915 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv);
 916 void vmw_kms_cursor_snoop(struct vmw_surface *srf,
 917                           struct ttm_object_file *tfile,
 918                           struct ttm_buffer_object *bo,
 919                           SVGA3dCmdHeader *header);
 920 int vmw_kms_write_svga(struct vmw_private *vmw_priv,
 921                        unsigned width, unsigned height, unsigned pitch,
 922                        unsigned bpp, unsigned depth);
 923 void vmw_kms_idle_workqueues(struct vmw_master *vmaster);
 924 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
 925                                 uint32_t pitch,
 926                                 uint32_t height);
 927 u32 vmw_get_vblank_counter(struct drm_device *dev, unsigned int pipe);
 928 int vmw_enable_vblank(struct drm_device *dev, unsigned int pipe);
 929 void vmw_disable_vblank(struct drm_device *dev, unsigned int pipe);
 930 int vmw_kms_present(struct vmw_private *dev_priv,
 931                     struct drm_file *file_priv,
 932                     struct vmw_framebuffer *vfb,
 933                     struct vmw_surface *surface,
 934                     uint32_t sid, int32_t destX, int32_t destY,
 935                     struct drm_vmw_rect *clips,
 936                     uint32_t num_clips);
 937 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
 938                                 struct drm_file *file_priv);
 939 void vmw_kms_legacy_hotspot_clear(struct vmw_private *dev_priv);
 940 void vmw_kms_lost_device(struct drm_device *dev);
 941
 942 int vmw_dumb_create(struct drm_file *file_priv,
 943                     struct drm_device *dev,
 944                     struct drm_mode_create_dumb *args);
 945
 946 int vmw_dumb_map_offset(struct drm_file *file_priv,
 947                         struct drm_device *dev, uint32_t handle,
 948                         uint64_t *offset);
 949 int vmw_dumb_destroy(struct drm_file *file_priv,
 950                      struct drm_device *dev,
 951                      uint32_t handle);
 952 extern int vmw_resource_pin(struct vmw_resource *res, bool interruptible);
 953 extern void vmw_resource_unpin(struct vmw_resource *res);
 954 extern enum vmw_res_type vmw_res_type(const struct vmw_resource *res);
 955
 956 /**
 957  * Overlay control - vmwgfx_overlay.c
 958  */
 959
 960 int vmw_overlay_init(struct vmw_private *dev_priv);
 961 int vmw_overlay_close(struct vmw_private *dev_priv);
 962 int vmw_overlay_ioctl(struct drm_device *dev, void *data,
 963                       struct drm_file *file_priv);
 964 int vmw_overlay_stop_all(struct vmw_private *dev_priv);
 965 int vmw_overlay_resume_all(struct vmw_private *dev_priv);
 966 int vmw_overlay_pause_all(struct vmw_private *dev_priv);
 967 int vmw_overlay_claim(struct vmw_private *dev_priv, uint32_t *out);
 968 int vmw_overlay_unref(struct vmw_private *dev_priv, uint32_t stream_id);
 969 int vmw_overlay_num_overlays(struct vmw_private *dev_priv);
 970 int vmw_overlay_num_free_overlays(struct vmw_private *dev_priv);
 971
 972 /**
 973  * GMR Id manager
 974  */
 975
 976 extern const struct ttm_mem_type_manager_func vmw_gmrid_manager_func;
 977
 978 /**
 979  * Prime - vmwgfx_prime.c
 980  */
 981
 982 extern const struct dma_buf_ops vmw_prime_dmabuf_ops;
 983 extern int vmw_prime_fd_to_handle(struct drm_device *dev,
 984                                   struct drm_file *file_priv,
 985                                   int fd, u32 *handle);
 986 extern int vmw_prime_handle_to_fd(struct drm_device *dev,
 987                                   struct drm_file *file_priv,
 988                                   uint32_t handle, uint32_t flags,
 989                                   int *prime_fd);
 990
 991 /*
 992  * MemoryOBject management -  vmwgfx_mob.c
 993  */
 994 struct vmw_mob;
 995 extern int vmw_mob_bind(struct vmw_private *dev_priv, struct vmw_mob *mob,
 996                         const struct vmw_sg_table *vsgt,
 997                         unsigned long num_data_pages, int32_t mob_id);
 998 extern void vmw_mob_unbind(struct vmw_private *dev_priv,
 999                            struct vmw_mob *mob);
1000 extern void vmw_mob_destroy(struct vmw_mob *mob);
1001 extern struct vmw_mob *vmw_mob_create(unsigned long data_pages);
1002 extern int vmw_otables_setup(struct vmw_private *dev_priv);
1003 extern void vmw_otables_takedown(struct vmw_private *dev_priv);
1004
1005 /*
1006  * Context management - vmwgfx_context.c
1007  */
1008
1009 extern const struct vmw_user_resource_conv *user_context_converter;
1010
1011 extern int vmw_context_check(struct vmw_private *dev_priv,
1012                              struct ttm_object_file *tfile,
1013                              int id,
1014                              struct vmw_resource **p_res);
1015 extern int vmw_context_define_ioctl(struct drm_device *dev, void *data,
1016                                     struct drm_file *file_priv);
1017 extern int vmw_extended_context_define_ioctl(struct drm_device *dev, void *data,
1018                                              struct drm_file *file_priv);
1019 extern int vmw_context_destroy_ioctl(struct drm_device *dev, void *data,
1020                                      struct drm_file *file_priv);
1021 extern struct list_head *vmw_context_binding_list(struct vmw_resource *ctx);
1022 extern struct vmw_cmdbuf_res_manager *
1023 vmw_context_res_man(struct vmw_resource *ctx);
1024 extern struct vmw_resource *vmw_context_cotable(struct vmw_resource *ctx,
1025                                                 SVGACOTableType cotable_type);
1026 extern struct list_head *vmw_context_binding_list(struct vmw_resource *ctx);
1027 struct vmw_ctx_binding_state;
1028 extern struct vmw_ctx_binding_state *
1029 vmw_context_binding_state(struct vmw_resource *ctx);
1030 extern void vmw_dx_context_scrub_cotables(struct vmw_resource *ctx,
1031                                           bool readback);
1032 extern int vmw_context_bind_dx_query(struct vmw_resource *ctx_res,
1033                                      struct vmw_dma_buffer *mob);
1034 extern struct vmw_dma_buffer *
1035 vmw_context_get_dx_query_mob(struct vmw_resource *ctx_res);
1036
1037
1038 /*
1039  * Surface management - vmwgfx_surface.c
1040  */
1041
1042 extern const struct vmw_user_resource_conv *user_surface_converter;
1043
1044 extern void vmw_surface_res_free(struct vmw_resource *res);
1045 extern int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data,
1046                                      struct drm_file *file_priv);
1047 extern int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
1048                                     struct drm_file *file_priv);
1049 extern int vmw_surface_reference_ioctl(struct drm_device *dev, void *data,
1050                                        struct drm_file *file_priv);
1051 extern int vmw_gb_surface_define_ioctl(struct drm_device *dev, void *data,
1052                                        struct drm_file *file_priv);
1053 extern int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data,
1054                                           struct drm_file *file_priv);
1055 extern int vmw_surface_check(struct vmw_private *dev_priv,
1056                              struct ttm_object_file *tfile,
1057                              uint32_t handle, int *id);
1058 extern int vmw_surface_validate(struct vmw_private *dev_priv,
1059                                 struct vmw_surface *srf);
1060 int vmw_surface_gb_priv_define(struct drm_device *dev,
1061                                uint32_t user_accounting_size,
1062                                uint32_t svga3d_flags,
1063                                SVGA3dSurfaceFormat format,
1064                                bool for_scanout,
1065                                uint32_t num_mip_levels,
1066                                uint32_t multisample_count,
1067                                uint32_t array_size,
1068                                struct drm_vmw_size size,
1069                                struct vmw_surface **srf_out);
1070
1071 /*
1072  * Shader management - vmwgfx_shader.c
1073  */
1074
1075 extern const struct vmw_user_resource_conv *user_shader_converter;
1076
1077 extern int vmw_shader_define_ioctl(struct drm_device *dev, void *data,
1078                                    struct drm_file *file_priv);
1079 extern int vmw_shader_destroy_ioctl(struct drm_device *dev, void *data,
1080                                     struct drm_file *file_priv);
1081 extern int vmw_compat_shader_add(struct vmw_private *dev_priv,
1082                                  struct vmw_cmdbuf_res_manager *man,
1083                                  u32 user_key, const void *bytecode,
1084                                  SVGA3dShaderType shader_type,
1085                                  size_t size,
1086                                  struct list_head *list);
1087 extern int vmw_shader_remove(struct vmw_cmdbuf_res_manager *man,
1088                              u32 user_key, SVGA3dShaderType shader_type,
1089                              struct list_head *list);
1090 extern int vmw_dx_shader_add(struct vmw_cmdbuf_res_manager *man,
1091                              struct vmw_resource *ctx,
1092                              u32 user_key,
1093                              SVGA3dShaderType shader_type,
1094                              struct list_head *list);
1095 extern void vmw_dx_shader_cotable_list_scrub(struct vmw_private *dev_priv,
1096                                              struct list_head *list,
1097                                              bool readback);
1098
1099 extern struct vmw_resource *
1100 vmw_shader_lookup(struct vmw_cmdbuf_res_manager *man,
1101                   u32 user_key, SVGA3dShaderType shader_type);
1102
1103 /*
1104  * Command buffer managed resources - vmwgfx_cmdbuf_res.c
1105  */
1106
1107 extern struct vmw_cmdbuf_res_manager *
1108 vmw_cmdbuf_res_man_create(struct vmw_private *dev_priv);
1109 extern void vmw_cmdbuf_res_man_destroy(struct vmw_cmdbuf_res_manager *man);
1110 extern size_t vmw_cmdbuf_res_man_size(void);
1111 extern struct vmw_resource *
1112 vmw_cmdbuf_res_lookup(struct vmw_cmdbuf_res_manager *man,
1113                       enum vmw_cmdbuf_res_type res_type,
1114                       u32 user_key);
1115 extern void vmw_cmdbuf_res_revert(struct list_head *list);
1116 extern void vmw_cmdbuf_res_commit(struct list_head *list);
1117 extern int vmw_cmdbuf_res_add(struct vmw_cmdbuf_res_manager *man,
1118                               enum vmw_cmdbuf_res_type res_type,
1119                               u32 user_key,
1120                               struct vmw_resource *res,
1121                               struct list_head *list);
1122 extern int vmw_cmdbuf_res_remove(struct vmw_cmdbuf_res_manager *man,
1123                                  enum vmw_cmdbuf_res_type res_type,
1124                                  u32 user_key,
1125                                  struct list_head *list,
1126                                  struct vmw_resource **res);
1127
1128 /*
1129  * COTable management - vmwgfx_cotable.c
1130  */
1131 extern const SVGACOTableType vmw_cotable_scrub_order[];
1132 extern struct vmw_resource *vmw_cotable_alloc(struct vmw_private *dev_priv,
1133                                               struct vmw_resource *ctx,
1134                                               u32 type);
1135 extern int vmw_cotable_notify(struct vmw_resource *res, int id);
1136 extern int vmw_cotable_scrub(struct vmw_resource *res, bool readback);
1137 extern void vmw_cotable_add_resource(struct vmw_resource *ctx,
1138                                      struct list_head *head);
1139
1140 /*
1141  * Command buffer managerment vmwgfx_cmdbuf.c
1142  */
1143 struct vmw_cmdbuf_man;
1144 struct vmw_cmdbuf_header;
1145
1146 extern struct vmw_cmdbuf_man *
1147 vmw_cmdbuf_man_create(struct vmw_private *dev_priv);
1148 extern int vmw_cmdbuf_set_pool_size(struct vmw_cmdbuf_man *man,
1149                                     size_t size, size_t default_size);
1150 extern void vmw_cmdbuf_remove_pool(struct vmw_cmdbuf_man *man);
1151 extern void vmw_cmdbuf_man_destroy(struct vmw_cmdbuf_man *man);
1152 extern int vmw_cmdbuf_idle(struct vmw_cmdbuf_man *man, bool interruptible,
1153                            unsigned long timeout);
1154 extern void *vmw_cmdbuf_reserve(struct vmw_cmdbuf_man *man, size_t size,
1155                                 int ctx_id, bool interruptible,
1156                                 struct vmw_cmdbuf_header *header);
1157 extern void vmw_cmdbuf_commit(struct vmw_cmdbuf_man *man, size_t size,
1158                               struct vmw_cmdbuf_header *header,
1159                               bool flush);
1160 extern void *vmw_cmdbuf_alloc(struct vmw_cmdbuf_man *man,
1161                               size_t size, bool interruptible,
1162                               struct vmw_cmdbuf_header **p_header);
1163 extern void vmw_cmdbuf_header_free(struct vmw_cmdbuf_header *header);
1164 extern int vmw_cmdbuf_cur_flush(struct vmw_cmdbuf_man *man,
1165                                 bool interruptible);
1166 extern void vmw_cmdbuf_irqthread(struct vmw_cmdbuf_man *man);
1167
1168
1169 /**
1170  * Inline helper functions
1171  */
1172
1173 static inline void vmw_surface_unreference(struct vmw_surface **srf)
1174 {
1175         struct vmw_surface *tmp_srf = *srf;
1176         struct vmw_resource *res = &tmp_srf->res;
1177         *srf = NULL;
1178
1179         vmw_resource_unreference(&res);
1180 }
1181
1182 static inline struct vmw_surface *vmw_surface_reference(struct vmw_surface *srf)
1183 {
1184         (void) vmw_resource_reference(&srf->res);
1185         return srf;
1186 }
1187
1188 static inline void vmw_dmabuf_unreference(struct vmw_dma_buffer **buf)
1189 {
1190         struct vmw_dma_buffer *tmp_buf = *buf;
1191
1192         *buf = NULL;
1193         if (tmp_buf != NULL) {
1194                 struct ttm_buffer_object *bo = &tmp_buf->base;
1195
1196                 ttm_bo_unref(&bo);
1197         }
1198 }
1199
1200 static inline struct vmw_dma_buffer *vmw_dmabuf_reference(struct vmw_dma_buffer *buf)
1201 {
1202         if (ttm_bo_reference(&buf->base))
1203                 return buf;
1204         return NULL;
1205 }
1206
1207 static inline struct ttm_mem_global *vmw_mem_glob(struct vmw_private *dev_priv)
1208 {
1209         return (struct ttm_mem_global *) dev_priv->mem_global_ref.object;
1210 }
1211
1212 static inline void vmw_fifo_resource_inc(struct vmw_private *dev_priv)
1213 {
1214         atomic_inc(&dev_priv->num_fifo_resources);
1215 }
1216
1217 static inline void vmw_fifo_resource_dec(struct vmw_private *dev_priv)
1218 {
1219         atomic_dec(&dev_priv->num_fifo_resources);
1220 }
1221
1222 /**
1223  * vmw_mmio_read - Perform a MMIO read from volatile memory
1224  *
1225  * @addr: The address to read from
1226  *
1227  * This function is intended to be equivalent to ioread32() on
1228  * memremap'd memory, but without byteswapping.
1229  */
1230 static inline u32 vmw_mmio_read(u32 *addr)
1231 {
1232         return READ_ONCE(*addr);
1233 }
1234
1235 /**
1236  * vmw_mmio_write - Perform a MMIO write to volatile memory
1237  *
1238  * @addr: The address to write to
1239  *
1240  * This function is intended to be equivalent to iowrite32 on
1241  * memremap'd memory, but without byteswapping.
1242  */
1243 static inline void vmw_mmio_write(u32 value, u32 *addr)
1244 {
1245         WRITE_ONCE(*addr, value);
1246 }
1247
1248 /**
1249  * Add vmw_msg module function
1250  */
1251 extern int vmw_host_log(const char *log);
1252
1253 #endif